XLV INTERNATIONAL SCIENTIFIC CONFERENCE ON
INFORMATION, COMMUNICATION
AND ENERGY SYSTEMS AND TECHNOLOGIES
www.icestconf.org
ICEST2010
23 - 26 June, Ohrid, Macedonia
Proceedings of Papers
VOLUME 2
Bitola, 2010
TABLE OF CONTENTS
VOLUME 2
POSTER SESSION II - Telecommunications Systems and TechnologyPO II.1 Hybrid ARQ Schemes Using Diagonally Interleaved Turbo Product Codes 493
Nikolay Kostov, Slava Yordanova and Ginka Marinova
PO 11.2 Comparison Studies on Path Recovery Schemes in MPLS Network 497
Veneta Aleksieva
PO 11.3 An Application for Geospatial Visualization of Optical Networks 501
Boban Joksimoski, Tomislav Lazarevski, Dejan Konevski, llija Jolevski and Dragan
MihajlovPO 11.4 Analysis of the Physical Layer in IEEE 802.16fe) Standard 505
Grigor Mihaylov, Teodor Iliev and Georgi Hristov
PO 11.5 Analysis of Reed-Solomon Codes: Application to Digital Video Broadcasting Systems ... 509
Teodor Iliev and Georgi Hristov
PO 11.6 Comparative Study on Asymmetric Key Cryptography Algorithms for HeterogeneousNetwork
,.513
Maria Nenova, Georgi Iliev and Kiril KassevPO 11.7 Forecasting the Number of IPTV Subscribers in Serbia 517
Valentina Radojicic, Goran Markovic and Marijana Vukasinovic
PO 11.8 Express Mail Service Quality Improvement Using TETRA Communication System 521
Momcilo Dobrodolac, Dejan Markovic, Bojan Stanivukovic and Mladenka Blagojevic
PO 11.9 Sequential Symbol Synchronizers based on Pulse Comparation by Positive
Transitions at a Quater Rate 525
Antonio Reis, Jose Rocha, Atilio Gameiro and Jose Carvalho
PO 11.10 Prefilter Bandwidth Effects in Sequential Symbol Synchronizers based on Pulse
Comparation by Positive Transitions at a Quater Rate 529Antonio Reis, Jose Rocha, Atilio Gameiro and Jose Carvalho
PO 11.11 Throughput Improvement in Gigabit DSL Communications 533
Vladimir Poulkov, Miglen Ovcharov and Pavlina Koleva
PO 11.12 Performance Analysis of SC Diversity System with Different Correlation Models in a
-H fading Environment 537
Jelena Anastasov, Mihajlo Stefanovic, Stefan Panic, Ivana Petrovic and Edis Mekic
PO 11.13 Application of MPPT controller for hybrid alternative electrical power grid
independent source 541Vladimir Smiljakovic and Zoran Zivanovic
PO 11.14 Wideband Receiver for Signal Detection in Frequency Range from 15 to 19GHz 545
Sinisa PJovanovic, Predrag S.Manojlovic, Dragan D.Obradovic and NemanjaM.Mitrovic
PO 11.15 Casse Grain Antenna of 0.9m at 10.5GHZ 549
Zoran Micic, Vladimir Smiljakovic and Ivan Jovanovic
POSTER SESSION III - Radio Communications, Microwave Technique
and Antennas
PO lll.l Comparative Study of Circularly Polarized Microstrip Arrays Distinguished by their
Feeding System 555
Georgi Kirov and Desislava Mihaylova
485
PO 111.2 Smart Antennas with Patch Elements. Modeling with Matlab 559
Vyara Vasileva
PO 111.3 Design of a Compact Hexagonal Monopole Antenna for Ultra-Wideband 563
A. A. Shaalan and M. 1. Ramadan
PO 111.4 Design of an Anechoic Chamber at the Faculty of Electronic Engineering in Nis 567
Zoran Stankovic, Bratislav Milovanovic, Nebojsa Doncov, Marija Agatonovic
POSTER SESSION IV - Signal Processing
PO IV.l Extracting Cuts From Video Streams in Real Time 575
Jugoslav Jokovic, Danilo Oordevic
PO IV.2 Shape Similarity for Biomedical Analyses 579
Mariana Tsv. Stoeva
PO IV.3 Digital FIR Filter with Improved Selectivity 583
Peter ApostolovPO IV.4 Identification and Clusterization of Images with Neuron Networks 587
Vladimir Yanakiev and Milena Lazarova
PO IV.5 Algorithm for Image Recognition on FPGA 591
Rosen Spirov
PO IV.6 Revisiting the Fractional-Order Hold Device 595
Milica Naumovic
POSTER SESSION V - Robotics
PO V.l Transfer Line for Manufacturing of Armatures for Electric Hand-Held Tools 601
Tchakarsky D., T. Vakarelska P. Tomov, R. Dimitrova, I. YanakievPO V.2 Object-Oriented Engineering Test-Stand for a Double- Sided Co-Axial Processing of
Openings in Products of a "Column" Type 607
Vakarelska T., D. Tchakarsky, P Tomov, R. Dimitrova, I. Yanakiev
PO V.3 Gesture-based Human-Robot Interaction and Control 611
Saso Koceski, Natasa Koceska and Predrag KoceskiPO V.4 Exploration of Algorithms to Control a Maze Robot 615
N. Nikolov, S. Ivanov, S. Mustafa, M. TodorovaPO V.5 Path Control with Input Saturation for Reversing a Car-Like Mobile Robot 619
Plamen Petrov and Lubomir Dimitrov
POSTER SESSION VI - Power Transmission and Distribution SystemsPO VI.1 Simulation Models of the Automatic Transfer Switch in the Electrical Power
Distribution Network 625
Medina Mehmed-Hamza
PO VI.2 Assessment of the Safety Conditions from High Touch and Step Voltages in the
Grounding Systems of Distribution Network 629Nikolce Acevski, Kire Mijoski, Tomce Mijoski
PO VI.3 Potential Characteristics of Single and Group Earthing Devices 633Marinela Yordanova, Borislav Hr. Dimitrov
PO VI.4 Analysis of the Residual Current Devices operation in IT and TT systems 635Marinela Yordanova, Mediha Mehmed-Hamza
PO VI.5 Overvoltage Protection of a Cable Part in an Electrical Grid 20 Kv 639
Margreta P. Vasileva
486
POSTER SESSION VII - Computer Systems and Internet Technologies I
PO VII.1 Specific Characteristics of Computer Criminal Offenses With Regard to the Law
Regulations 643
Jelena Matijasevic and Zaklina Spalevic
PO VII.2 A Modular System for Solving Optimization Problems by Testing Them with Genetic
Algorithms 647
Hristo Toshev, Stefan Koynov and Chavdar Korsemov
POVII.3 Ontology-Based Deep Web Search For E-Science 651
Tatyana Ivanova
PO VII.4 RDB to RDF or Ontology Mapping - Approaches, Tools and Problems 655
Tatyana Ivanova
PO VII.5 Software Cost Estimation - a Practical Approach 659
Violeta Bozhikova
PO VII.6 Web-based Interactive System for Multicriteria Decision Analysis 663
Mariana Vassileva, Krassimira Genova and Boris Staykov
PO VII.7 Constructing Data Cube as an Object Oriented Class 667
Antoaneta Ivanova
POVII.8 Virtual System for Generating Analog and Digital Signals 671
Tsvetozar Georgiev and Georgi Krastev
PO VII.9 Asynchronous Micro-Pipeline With Multi-Stage Sections 675
Dimita'r.Tyanev, Stefka Popova
POSTER SESSION VIII - Computer Systems and Internet Technologies II
PO VIII.1 Collaborative Environment Aimed to Promote Knowledge Creation 681
Tania Vasileva and Vassiliy Tchoumatchenko
PO VIII.2 Programming Environment for Management of Parallel Jobs with Concurrent Access
to a Common Data Source 685
Ivaylo Penev
PO VIII.3 Creating Applications With PHP & AJAX 689
Ljupcho Apostolov
PO VIII.4 Performance Assessment of Metrics for Video Quality Estimation 693
Zoran Kotevski and Pece Mitrevski
POVIII.5 PageRank Algorithm Overview 697
llija Jolevski, Gjorgi Mikarovski and Aleksandar Kotevski
PO VIII.6 Impact of the Number of Chromosomes on the Fitness Value Improvement in
Standard GA Applications 701
Ivana Stojanovska, Agni Dika and Blerta Prevalla
PO VIII.7 Performance Analysis of Sorting Algorithms Through Time Complexity 705
Blerta Prevalla, Ivana Stojanovska and Agni Dika
PO VIII.8 DBpedia as Entry Point in the Web of Data (Semantic Web) 709
Mile Gjorgjioski, Dijana Capeska-Bogatinoska and Mirjana Trompeska
POSTER SESSION IX - Computer Systems and Internet Technologies III
PO IX.l System Architecture for Capital Budgeting in Non-Financial Institution 715
Galina Naydenova
PO IX.2 Graph-Based Analytical Approach to Testing Programs 719
Mitko Mitev and Pavlina Vladimirova
PO IX.3 A Study of Information Technology Use Among Students at South East European
University 723
Marika Trpkovska
487
PO IX.4 Virtual Infrastructures in Education 727
Hristo Valchanov, Nadezhda Ruskova and Trifon Ruskov
PO IX.5 An Approach to Factorization and Attack Against the Asymmetric Cryptographic
Algorithm RSA 731
Petar Antonov and Valentina Antonova
PO IX.6 Secure Authentication Protocol for Distant Access 735
Petar Antonov and Valentina Antonova
PO IX.7 Java-Based Systems for Analysis and Estimation, with Application in Diagnostics of
Complex Objects 737
Hristo Nenov
PO IX.8 Innovation in Systems for Analyze and Estimation 739
Hristo Nenov and Geo Kunev
PO IX.9 Fuzzy Based Approach for Decision Support System 743
Pavlina Vladimirova and Daniela llieva
PO IX.10 Information Technology Influence on Bank For Business 747
Ramaj Vehbi, Hasani Vjollca and Shabani Enver
POSTER SESSION X - Computer Graphics
PO X.l Video Surveillance using Augmented Virtual Environments 753
Aleksandar Milosavljevic, Aleksandar Dimitrijevic and Dejan Rancic
PO X.2 Application of Listed Data Structures in Knitting Industry CAD/CAM Systems
Development , 757
Elena Zaharieva-StoyanovaPO X.3. A Fast Template Matching Algorithm 761
Yulka Petkova, Nuri Nuri and Milena^Karova
PO X.4 Cost Effective 3D Architectural Visualisation 765
Igor Nedelkovski and Vladimir GjorgjieskiPO X.5 Creating Panoramas and Eliminating Ghosting 769
Svetlana Vrskova and Igor Nedelkovski
PO X.6 Optimization of Laser Marking Process with the Help of Stimulation Models 773
Lyubomir Lazov, Nikolaj AngelovPOX.7 3D Graphic Images of Laser Induction Temperature Fields 777
Lyubomir Lazov and Nikolaj AngelovPO X.8 A Low Cost Method for 3-D Documentation of Cultural Heritage Objects 781
Jove Pargovski
POSTER SESSION XI - Electronic Components, Systems and
TechnologiesPO Xl.l Realization of Direct Digital Synthesis Generators Based on FPGA and PSoC
Integrated Circuits 787
EltimirStoimenov, Georgi Mihov and Ivailo Pandiev
PO XI.2 Modeling and Simulation of Hall Elements 791
A.T.AIeksandrov, P.D. Petrova, N. D. DraganovPO XI.3 Optoelectronic Devices Characterization Using Low Cost Data Acquisition System 795
Georgi Nikolov and Todor DjamiykovPO XI.4 Experimental Galvanomagnetic Transdusers of Linear Offset - Part 1 799
Nikola Draganov and Anatolii Aleksandrov
PO XI.5 Experimental Galvanomagnetic Transducers of Linear and Angular Offset - Part II 803
Anatolii Aleksandrov and Nikola DraganovPOXI.6 Modeling FPGA Logic Architecture 807
Petar Minev and Valentina Kukenska
488
PO XI.7 Behavioural VHDL-AMS Model for the Current- Feedback Operational Amplifier 811
Ivailo Pandiev
PO XI.8 Voltage-mode Lowpass, Bandpass, and Bandstop Programmable Filter using Four-
terminal CFOAs 815
Ivailo Pandiev
PO XI.9 Recombination Process in Bilayer Polymer Electroluminescent Structures 819
Mariya Aleksandrova, Milka Rassovska, Georgy Dobrikov
PO XI.10 Modeling of a Discharge Pulse in a Circuit With Two Discharge Gaps 823
Stefan Bamdovand Milena Dicheva
POXI.ll Image Quality of Planar InP Detector 827
Maja Dekic and Hasna Samic
PO XI.12 Investigations of Power Losses in Off-Chip and On-Chip Inductors 831
Tihomir Brusev and Boyanka Nikolova
PO XI.13 Behavioural VHDL-AMS Model for Monolithic Programmable Gain Amplifiers 835
Dimo Martev, Ivan Panayotov and Ivailo Pandiev
POSTER SESSION XII - Industrial Electronics
PO XII.1 Adjustment and Diagnostics of the System for Gas in Motor Vehicles 841
Milan Milovanovic and Sasa Jovanovic
PO XII.2 Analysis of LCC Resonant DC-DC Converter with Capacity Filter in the Load Circuit 845
Aleksandar Vuchev, Nikolay Bankov and Georgi TerziyskiPO XII.3 Load Characteristics of LCC Resonant DC-DC Converter with Capacity Filter in the
Load Circuit 849
Aleksandar Vuchev, Nikolay Bankov and Georgi Terziyski
PO XII.4 Investigation of Power MOSFET and IGBT Gate Drivers using SPICE 853
Georgi Kunov and Elissaveta Gadjeva
POXII.5 CCTV Industry 857
Elena Koleva and Ivan Kolev
PO XII.6 PSPICE Simulations of Pulse Distributor in Industry 861
Elena Koleva andTsanko Karadzhov
PO XII.7 Generator of Synchronizing Digital Signals with Microcontroller PIC18F252 865
Tsanko Karadzhov and Ivelina Balabanova
PO XII.8 Improved Grid Connected Power Supply for Drivers in Power Electronic Converters 869
Vencislav Valchev, Dimitar Bozalakov and Angel Marinov
POSTER SESSION XIII - Renewable Energies
PO XIII.1 Preferential Tariffs and Administrative Procedures for Obtaining Licenses for Use of
Electric Power From Photovoltaics 875
Miroslav Labudovic, Vladimir Labudovic and Hristina Spasevska
PO XIII.2 Renewable Energy Technologies and Challenges for Their Applications 879
Aleksandar Malecic
PO XIII.3 Influence of the Monthly Solar Radiation Variations to the Performances of the
Hybrid Photovoltaic-Diesel Systems 883
Dimitar Dimitrov, Atanas lliev
PO XIII.4 Optimal Distribution of PV Modules According to Dynamic Optimization Methods 887
Borislav Dimitrov, HristoforTahrilov
PO XIII.5 Autonomous PV Heating System with Foil Heaters 891
Borislav Dimitrov, HristoforTahrilov
PO XIII.6 Silicon Sensors for Systems for Assessment of Sun Potential 895
Irina Pavlova, Ilia Hadzhidimov, Emilian Bekov
489
PO XIII.7 Increasing the Role of RES and Correct Assessment the Solar Potential of Bulgaria 899
Zheko Kiryakov and lliya Hadzhidimov
PO XIII.8 Investigation of an Autonomous Hybrid System for Direct Supply of an Induction
Heating Device 903
Vencislav Valchev, Hristofor Tahrilov, Borislav Dimitrov
PO XIII.9 Mathematical Model for Water Use and Transfer Between Hydro Power Plants 907
Mile Spirovski and Arsen Arsenov
POSTER SESSION XIV - Education Quality
PO XIV.l Electronic Identification of Completing the Evaluations of Students in a Database 913
Rosen Radonov, Konstantin Zaimov and Valentin Videkov
PO X1V.2 Laws for E- Learning and Copyrights 917
Elena Racheva, Slava Yordanova and Mitko Mitev
PO XIV.3 Development in Education of Electrical Measurements and Circuits Theory 919
Rosen Vasilev, Ivaylo Nedelchev, Vyara Vasileva and Miroslava Doneva
PO XIV.4 Examples for Virtual Laboratory Exercises by Electrical Measurements Based on Nl
ELVIS II 923
Rosen Vasilev and Ivaylo Nedelchev
PO X1V.5 Framework for Mapping Learner and Gamer 927
Milen Petrov and Adelina Aleksieva-Petrova
PO XIV.6 Using Student Feedback in Measuring the Quality of Teaching in Higher Education 931
Danijel Mijic
PO XIV.7 Program Library for Development and Research of Distance Learning Courses 935
Mitko Mitev and Dimitar Georgiev
PO XIV.8 The MPLS Network Simulators in the Computer Network Education 939
Veneta Aleksieva
PO XIV.9 E-content for Computer-Aided Design of Communication Circuits with PSpiceSimulator 943
Galia Marinova
PO XIV.10 On-line system fdr Testing and Certification 947
Milena Karova, Julka Petkova and Emil Kerekovski
PO XIV.ll Some Important factors for Designing Semi- Autonomous Learning Environments 951
Boyka Geadinarova
490